|
public GetMissingPKHandling ( |
||
| type | Entity type for which metadata is being generated | |
| return | MissingKeyHandling | |
/// <summary>
/// Add the metadata for an entity.
/// </summary>
/// <param name="type">Type for which metadata is being generated</param>
void AddType(Type type)
{
// "Customer:#Breeze.Models.NorthwindIBModel": {
var classKey = type.Name + ":#" + type.Namespace;
var cmap = new Dictionary <string, object>();
_typeList.Add(cmap);
_typeMap.Add(type, cmap);
cmap.Add("shortName", type.Name);
cmap.Add("namespace", type.Namespace);
if (!type.IsInterface)
{
var interfaces = type.GetInterfaces().Except(type.BaseType.GetInterfaces()).Where(t => _types.Contains(t)).Select(t => t.Name).ToList();
if (interfaces.Any())
{
var custom = new Dictionary <string, object>()
{
{ "interfaces", string.Join(", ", interfaces) }
};
cmap.Add("custom", custom);
}
}
if (_describer.IsComplexType(type))
{
cmap.Add("isComplexType", true);
}
else
{
// Only identify the base type if it is also an entity in the type list
if (_entityTypes.Contains(type.BaseType))
{
var baseTypeName = type.BaseType.Name + ":#" + type.BaseType.Namespace;
cmap.Add("baseTypeName", baseTypeName);
}
if (type.IsAbstract)
{
cmap.Add("isAbstract", true);
}
// Get the autoGeneratedKeyType for this type
var keyGenerator = _describer.GetAutoGeneratedKeyType(type);
if (keyGenerator != null)
{
cmap.Add("autoGeneratedKeyType", keyGenerator);
}
var resourceName = _describer.GetResourceName(type);
cmap.Add("defaultResourceName", resourceName);
_resourceMap.Add(resourceName, classKey);
}
var dataList = new List <Dictionary <string, object> >();
cmap.Add("dataProperties", dataList);
AddDataProperties(type, dataList);
// Change the autoGeneratedKeyType if an attribute was found on a data property
var keyProp = FindEntry(dataList, "isPartOfKey");
if (keyProp != null)
{
var custom = keyProp.Get("custom");
if ("Identity".Equals(custom))
{
cmap["autoGeneratedKeyType"] = "Identity";
keyProp.Remove("custom");
}
else if ("Computed".Equals(custom))
{
cmap["autoGeneratedKeyType"] = "KeyGenerator";
keyProp.Remove("custom");
}
}
else if (!type.IsAbstract && !type.IsEnum && !_describer.IsComplexType(type) && !_entityTypes.Contains(type.BaseType))
{
// No key for an entity => error or add the key
var missingFKHandling = _describer.GetMissingPKHandling(type);
if (missingFKHandling == MissingKeyHandling.Error)
{
throw new Exception("Key not found for entity " + classKey);
}
else if (missingFKHandling == MissingKeyHandling.Add)
{
var dmap = new Dictionary <string, object>();
dmap.Add("nameOnServer", type.Name + "GenKey");
dmap.Add("dataType", "Guid"); // TODO make this configurable
dmap.Add("isPartOfKey", true);
dmap.Add("custom", "pk_generated");
dataList.Add(dmap);
}
else
{
Console.Error.WriteLine("Key not found for entity " + classKey);
}
}
// Validators
var validators = new List <Dictionary <string, object> >();
var attributes = type.GetCustomAttributes();
foreach (var attr in attributes)
{
if (attr is ValidationAttribute)
{
var validator = _describer.MapValidationAttribute((ValidationAttribute)attr);
if (validator != null)
{
validators.Add(validator);
}
}
}
if (validators.Any())
{
cmap.Add("validators", validators);
}
}